Robitussin DM Infant Drops Ingredients Per 5 ml: Dextromethorphan 10mg (Cough Suppressant) Guaifenesin 200mg (Expectorant) WHEN TO USE Frequent cough, no runny nose or nasal congestion. I use this type of combination for dry coughs especially at night if the cough prevents my child from going to sleep or staying asleep. The combination of DM […]

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